Skate fitness car

ABSTRACT

A skate fitness car includes left and right support rods having a front end pivotally coupled to a vertical pipe and freely swayed sideway, a rear end pivotally coupled to a rear driving wheel module for automatic position restorations, and a link rod pivotally coupled between the left and right support rods. If a user releases the link rod and applies forces by both legs to bring together and separate the left and right support rods, the left and right rear driving wheels can be rolled forward in an S-shaped path. A front compacting wheel below the vertical pipe is provided for driving a car body to move forward. If the user locks the link rod, the user can apply forces to the left and right support rods by both legs or twist the body to roll the left and right rear driving wheels forward in an S-shaped path and drive the front compacting wheel to slide the car body, so as to achieve the multiple operating modes and give more funs to the fitness exercise.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a skate fitness car, in particular to an improved skate fitness car operated by a user's legs to bring left and right support rods inwardly together or separate the left and right support rods outwardly from each other, or applying forces by both legs to the left and right support rods alternately, or twisting the user's body for sliding the skate fitness car to move forward smoothly, so as to give more fun and more diversified recreational effects of the skate fitness car.

2. Description of the Related Art

In a triangular design of a skate fitness car driven by bringing the left and right support rods inwardly together and separating the left and right support rods outwardly from each other alternately, the car body can be slid and moved forward. In FIGS. 1 to 3, a front end of left and right carrier rods 10 is pivotally coupled to a car frame 1 through a pivotal pipe 101, such that the left and right carrier rods 10 can be brought together or separated from each other, and a vertical pipe 20 is pivotally coupled to a front end of the car frame 1, and a handlebar 21 and a front compacting wheel 23 are installed at the top and bottom of the car frame 1 respectively. In addition, a carrier 12 is installed separately to two carrier rods 10, and a rear driving wheel module 30 is installed at a rear end of each carrier rod 10, wherein the rear driving wheel module 30 includes a rear fork 301 for installing a rear driving wheel 302, and an upper end of the rear fork 301 is vertically and pivotally coupled to a rear end of the carrier rod 10 through a pivotal pipe 3011, and the bottom of the rear fork 301 is dragged by a resilient element 303 at the carrier rod 10 through an extended board 3012, such that the rear fork 301 and the rear driving wheel 302 have the resilience force for restoring their positions anytime. When use, a user peddles the carriers 12 with movements of bringing both legs together and separating both legs, such that the two carrier rods 10 can be moved towards each other and away from each other alternately, and the two rear driving wheel modules 30 are swayed accordingly, and the rear driving wheels 302 can be moved forward in an S-shaped path, so as to achieve the effects of driving the car body to move forward and providing a fitness exercise for both legs. When a user operates the carriers 12 to move towards and away from each other by both legs (as shown in FIGS. 2 and 3), the pivotal pipe 3011 pivotally coupled to the rear fork 301 is installed in a perpendicular direction, and thus the position restoring movement cannot be achieved. To make the rear driving wheel module 30 to sway accordingly, a resilient element 303 is provided for a compulsory position restoring movement.

Undeniably, the aforementioned skate fitness car can provide users the expected fitness exercise effect when the user is operating and driving the car body to slide forward, but the conventional skate car still has the following drawbacks after a long time of use:

1. Since the left and right support rods are moved towards and away from each other by both legs continuously, therefore both legs will get tired quickly, and such operation is a single operation mode which is suitable for young people but not for children and elderly people, and the target users are limited.

2. In view of the description above, the way of driving the car body to slide totally relies on bringing together and separating the left and right support rods continuously by both legs, which is a single operating mode, and the exercise becomes monotonous and boring soon, and thus users may lose their interest of continuing the exercise.

3. Since the resilient element has a resilience force for restoring the position of the rear driving wheel modules, the resistance of driving the rear driving wheels becomes greater and affects the speed and smoothness of the sliding car body.

SUMMARY OF THE INVENTION

In view of the shortcomings of the prior art, the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed an improved skate fitness car having a rear driving wheel module separately installed to the left and right support rods and pivotally coupled to a vertical pipe, and a link rod pivotally coupled to a rear end of the left and right support rods and disposed between the left and right support rods for automatic swaying and position restoration, such that when the link rod is released, a user can bring together or separate the left and right support rods by both legs, and the left and right rear driving wheels can be rolled forward in an S-shaped path in compliance with a front compacting wheel at the bottom of the vertical pipe to drive the car body to slide, or when the link rod is locked, the user can apply forces to the left and right support rods by both legs or twist the body, such that the left and right rear driving wheels can be rolled forward in an S-shaped path in compliance with the front compacting wheel to drive the car body to slide. In the multiple operating modes, the effects of extending the scope of target users, increasing the range of fitness exercise and enhancing the fin and recreation of the skate fitness car can be achieved. The present invention can also achieve the expected exercise fitness purposes and effects.

Another objective of the present invention is to provide an improved skate fitness car, wherein the left and right rear driving wheels are swayed and restored by applying forces through the user's legs or twisting the user's body. With the installation of the front compacting wheel, the speed and smoothness of sliding the car body can be enhanced.

A further objective of the present invention is to provide an improved skate fitness car, wherein a pivot and a lock element are installed at a front end proximate to the left and right support rods, such that the vertical pipe can be spread open or folded to achieve the effects of providing a convenient use and saving storage space.

To make it easier for our examiner to understand the objects, characteristics and performances of the present invention, we use preferred embodiments accompanied with related drawings for the detailed description of the invention as follows.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a conventional skate fitness car;

FIG. 2 is a bottom view of bringing together both left and right support rods of the conventional skate fitness car as depicted in FIG. 1 outward and separating them from each other;

FIG. 3 is a bottom view of bringing together both left and right support rods of the conventional skate fitness car as depicted in FIG. 1 together;

FIG. 4 is a perspective view of a preferred embodiment of the present invention;

FIG. 5 is a perspective view of pivotally coupling a vertical pipe with left and right support rods in accordance with a preferred embodiment of the present invention;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a bottom view of FIG. 5;

FIG. 8 is a front view of FIG. 4;

FIG. 9 is a front view of installing a rear driving wheel module of the present invention;

FIG. 10 is a bottom view of bringing both left and right support rods together and separating the left and right support rods from each other in accordance with a preferred embodiment of the present invention;

FIG. 11 is a bottom view of integrating left and right support rods to a swaying movement in accordance with a preferred embodiment of the present invention; and

FIG. 12 is a front view of a folding movement in accordance with a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIGS. 4 to 7, the present invention provides an improved skate fitness car, wherein a vertical pipe 20 is pivotally coupled to an end of left and right support rods 10 and freely swayed sideway, and a rear driving wheel module 30 is pivotally coupled to another end of the left and right support rods 10 for automatic position restoration and correction, and a link rod 40 is pivotally coupled between the vertical pipe 20 and the rear driving wheel module 30.

A carrier 12 is installed separately at the left and right support rods 10 and provided for users to stand and step on the carriers 12, and an extended arm 11 is pivotally coupled to an end by a pivot 103 and can be selectively locked by a lock element 104, and another end of the left and right extended arms 11 includes a bushing 111 pivotally coupled to the vertical pipe 20 and freely rotated up-and-down, so that the left and right support rods 10 can be swayed sideway to the left and right, and a corresponding shock absorber 112 is installed at the front of the left and right extended arms 11, such that the left and right support rods 10 can be stopped and buffered with each other when the left and right support rods 10 are swayed outward to a specific angle.

The vertical pipe 20 includes a front compacting wheel 23 installed at the bottom of the vertical pipe 20 through a front fork 22, and a handlebar 21 installed at the top of the vertical pipe 20 for controlling the turns of the front compacting wheel 23.

An end of the link rod 40 is pivotally coupled to an extended arm 11 of the left and right support rods 10 through a pivot 401, and another end of the link rod 40 is selectively locked by a lock element 402, such that if the lock element 402 is locked, the left and right support rods 10 are integrally combined with each other and can be swayed by using the vertical pipe 20 as a turning point, and if the lock element 402 is released, the left and right support rods 10 are swayed freely with respect to the vertical pipe 20.

The rear driving wheel module 30 (as shown in FIGS. 8 and 9) has an upper end pivotally coupled to and eccentrically compressed at a rear end of the carrier rod 10, in addition to the bottom of the rear fork 301 pivotally coupled to the rear driving wheel 302, and the top of the rear fork 301 eccentrically compressed through the slanting rotating pivot 304, such that when a user applies forces at the carrier 12 and the carrier rod 10 by both legs, the eccentrically compressed and positioned rotating pivot 304 drives the rear driving wheel 302 to perform automatic position restoration and correction through the rear fork 301.

In FIG. 10, the left and right support rods 10 can be rotated freely by using the vertical pipe 20 as the turning point if the lock element 402 of the link rod 40 is released, and a user can stand on the left and right carriers 12, such that the user can apply forces to bring together or separate the left and right rear driving wheels module 30. When the carrier rod 10 is swayed, the rear driving wheel 302 of the rear driving wheel module 30 is driven to sway and guide the eccentrically compressed and positioned rotating pivot 304 for automatic position restoration and correction, and the left and right rear driving wheels 302 can be rolled to drive the car body to move forward in an S-shaped path by applying forces to the left and right support rods 10 to bring together or separate the left and right support rods 10, so as to achieve the fitness exercise effect. Of course, the corresponding shock absorbers 112 can be installed at the front of the extended arm 11 of the left and right support rods 10, such that when the left and right support rods 10 are swayed outward and separated with each other with a maximum predetermined angle θ, the shock absorbers 112 are stopped by each other for absorbing shocks to provide a comfortable operation by both legs.

In FIG. 11, if the lock element 402 of the link rod 40 is locked, the left and right support rods 10 will be combined integrally and swayed by using the vertical pipe 20 as a turning point, and a user can stand on the left and right carriers 12. With the left and right rear driving wheels module 30, the user can apply forces by both legs or twisting the body to sway left and right support rods 10, and the rear driving wheel 302 of the rear driving wheel module 30 can be driven to sway when the support rods 10 are swayed, and the eccentrically compressed and positioned rotating pivot 304 is provided for automatic position restoration and correction, and the left and right rear driving wheels 302 can be swayed together with the left and right support rods 10 and rolled forward in an S-shaped path, so as to achieve the effects of sliding the car body, providing a fitness exercise for both legs and the whole body.

Since the left and right rear driving wheels 302 installed at a rear end of the left and right support rods 10 can be used for an automatic position restoration or correction of a swaying movement by a bias rotating pivot 304 according to the forces applied to the carrier 12 by the user's legs or twisting the user's body. With the front compacting wheel 23, the speed and smoothness of operating and sliding the car body can be enhanced.

In FIG. 12, an end of the left and right support rods 10 is movably coupled to the extended arm 11 by a pivot 103 and selectively locked by a lock element 104, and another end of the extended arm 11 is passed and fixed to the vertical pipe 20 by a bushing 111. Users can lock the lock element 104 to separate the left and right support rods 10 from the vertical pipe 20 or release the lock element 104 to fold the extended arm 11, the vertical pipe 20 and the handlebar 21 and the front compacting wheel 23 installed to the vertical pipe 20 by using the pivot 103 as the turning point. If the lock element 402 of the link rod 40 is released, the left and right support rods 10 and the vertical pipe 20 can be folded and stacked to achieve a simple, easy and convenient storage without occupying much space.

In other words, the present invention has the following advantages:

1. The skate fitness car of the invention comes with a multiple of operating modes, extends the scope of target users, increases the range of fitness exercises and improves the fun and recreation of the skate fitness car, so as to achieve the expected exercising purposes and effects.

2. The speed and smoothness of sliding the car body are enhanced.

3. The car body can be unfolded and folded easily and conveniently to save storage space and make transportation and storage easy and convenient.

4. The manufacture and operation of the skate fitness car of the invention are simple, easy, convenient and safe.

In summation of the description above, the present invention provides an improved skate fitness car having a better performance and a less complicated structure than the conventional skate fitness car, and complies with the patent application requirements, and thus the invention is duly filed for patent application.

While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims. 

1. An improved skate fitness car, comprising: a vertical pipe, having a handlebar and a front compacting wheel installed at top and bottom of the vertical pipe respectively; left and right support rods, each having a carrier, with a front end pivotally coupled to the vertical pipe, and a rear end installing a rear driving wheel module of a rear driving wheel; characterized in that the left and right support rods are pivotally coupled to the vertical pipe and freely swayed sideway, and the rear driving wheel module is pivotally coupled to the left and right support rods and freely swayed for automatic position restoration and correction, and a link rod is pivotally coupled between the left and right support rods; thereby the link rod is selectively connected and a user can stand on the left and right carriers to apply forces by the user's legs or twist the user's body to bring together or separate the left and right carriers, so as to drive the rear driving wheel of the rear driving wheel module to slide a car body forward in an S-shaped path.
 2. The improved skate fitness car of claim 1, wherein the front end of the left and right support rods is pivotally coupled to an extended arm by a pivot, and the extended arm and the carrier rods are locked and controlled by a lock element.
 3. The improved skate fitness car of claim 2, wherein the extended arm of the left and right support rods includes a bushing disposed at a front end of the extended arm, pivotally coupled and freely rotated up and down the vertical pipe.
 4. The improved skate fitness car of claim 2, wherein each extended arm at the front end of the left and right support rods includes a corresponding shock absorber, and the left and right shock absorbers are stopped by each other when the left and right support rods are separated from each other with a predetermined maximum angle.
 5. The improved skate fitness car of claim 1, wherein the link rod has an end movably coupled to the left and right support rods by a pivot, and another end is selectively locked by a lock element, such that if the lock element is locked, then the left and right support rods will be combined integrally and swayed by using the vertical pipe as a turning point, and if the lock element is released, then the left and right support rods will be separated from each other and swayed by using the vertical pipe as the turning point.
 6. The improved skate fitness car of claim 1, wherein the rear driving wheel of the rear driving wheel module is pivotally coupled to a rear end of the carrier rod and eccentrically compressed by the rear fork and a slanting rotating pivot. 